用于电压输出差分音频 DAC 的宽动态范围耳机驱动器参考设计原理图

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TIDA00715

C2+Vs+Vs-Vs-Vs

C4

DNI

DNI

C23C24C25C26R1VF4

1.1ΚΩ

732Ω

1000pF100pF1000pF100pF

AA

SMAR8

0.1%DNI

1

0.1%AudioJack

GNDGNDGNDGND

VF1J8

-Vs+Vs2

R45DNI

SMA

30ΩU1PD2A4U2A

1698Ω

0.1%

C11R5

1

GND

1.1ΚΩSJ-3523-SMT

OPA2836

0ΩR7VF6

0.1%1Ω

V-

42

2R191

VOCM

0Ω

SMA

GND0Ω

53

C12R4698Ω

V+

R13

8R18

R3

1.1ΚΩR15

VF2

THS4521

0.1%

SMAPD1

0.1%32Ω

7GND

R46

GND

+Vs

+Vs-Vs

DNIVF5

732Ω

R41R6

DNI

GND1

GNDSMA

1.1ΚΩ

R2

1.1ΚΩ

0.1%

0.1%

0.1%

C6

DNIDNI

C3

DNI

GND

732Ω

C5R12R420.1µF

0.1%1.1ΚΩ

+Vs0.1%+Vs+Vs-Vs-Vs

BB

DNIGND

PD2BU2B

6

0.1%

-Vs

C15C16C18

C17

R111.1ΚΩ

8

1Ω

1000pF9

1.1ΚΩ

7

R14

R9L1

OPA2836GNDGNDGNDGND

+Vs+Vs

0.1%

LQM31PN1R5MC0L

-VsSPC15363

C39C40

GND

10µF0.1µF

R10

732Ω

0.1%

SPC15354

C41

L2

C42GND

-Vs10µF0.1µF

C7

C9

+Vs+Vs-Vs-VsDNI

LQM31PN1R5MC0L

DNI-Vs

SPC15182C27

C28C29C30R21VF10

1.1ΚΩ

1000pF100pF1000pF100pF

SMAR28

732Ω

0.1%DNI

0.1%

1

R47

GNDGNDGNDGND

VF7-Vs+Vs

SMADNI

S1

C0ΩU3PD4A4U4AC

698Ω0.1%+Vs

3C13R24

THS4521GND1

R271.1ΚΩVF1249.9Ω

OPA28360Ω

2R16PD1

0.1%

42

2R361

SMA

0Ω0Ω

VOCM

51R17PD2A

1.1ΚΩ49.9Ω

3GND

V+

R33-Vs

C14R23

698Ω

8R25

VF849.9Ω

R35R37

0.1%0.1%

SMAPD3

32Ω

CL-SB-12B-01TR20PD2B7

R48

GND

R38PD3

49.9Ω+Vs

+Vs-Vs

DNI

VF1149.9Ω

R39PD4AR26

732Ω

R431GND

R221.1ΚΩ49.9Ω

DNI

GND

1.1ΚΩ

SMA0.1%

R40PD4B

0.1%

0.1%C10

DNI

C8

DNI

DNI

GND

R32732ΩR44

C1TPG1TPG2TPG3

0.1%1.1ΚΩ

0.1µF

+Vs0.1%+Vs+Vs-Vs-Vs

DNIGND

PD4B6U4B

0.1%

-Vs

1.1ΚΩ

C19C20C21C22R31

8

1Ω

1000pF

100pF9

1000pF100pFGND

1.1ΚΩ

7

R34

DD

R29OPA2836GNDGNDGNDGND

0.1%

-Vs

R30

732Ω

0.1%

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